The main protagonist of the series, who just recently moved and now attends the Hoshio Private Academy in her first year of high school. Because she caught mumps and thus had to miss out on her high school entry exams, she was forced to repeat her entire final middle school year. As a result, she is very self-conscious about her current standing and that she does not have anyone of her old school friends in her company, and is therefore very glad to build up an immediate friendship with Eiko, Kamuri and Tamate.